US2633789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary tiller
Assignee: Individual
•
Filing: 1949-04-20
•
Granted: 1953-04-07
•
Expires: 1969-04-20
Abstract
No abstract record available.
Inventors
- 👤 Howard C Ober
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:00
CPC Classifications
A; A01; A01B; A01B33/00; A01B33/02; A01B33/028; B; B62; B62D; B62D51/00; B62D51/04; B62D51/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US934238A
Cited
US1486548A
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US1744597A
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US2006632A
Cited
US2176261A
Cited
US2235277A
Cited
US2388553A
Cited
US2491892A
Cited
US2489274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |